US7131234B2 - Combination end seal and restraint - Google Patents
Combination end seal and restraint Download PDFInfo
- Publication number
- US7131234B2 US7131234B2 US10/982,952 US98295204A US7131234B2 US 7131234 B2 US7131234 B2 US 7131234B2 US 98295204 A US98295204 A US 98295204A US 7131234 B2 US7131234 B2 US 7131234B2
- Authority
- US
- United States
- Prior art keywords
- end seal
- cotyledon restraint
- combination end
- sidewalls
- restraint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active, expires
Links
- 238000007789 sealing Methods 0.000 claims description 24
- 230000000050 nutritive effect Effects 0.000 claims description 22
- 238000004519 manufacturing process Methods 0.000 description 11
- 210000001161 mammalian embryo Anatomy 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 230000008901 benefit Effects 0.000 description 3
- 210000002257 embryonic structure Anatomy 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001651 autotrophic effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000392 somatic effect Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- A01H4/00—Plant reproduction by tissue culture techniques ; Tissue culture techniques therefor
- A01H4/005—Methods for micropropagation; Vegetative plant propagation using cell or tissue culture techniques
- A01H4/006—Encapsulated embryos for plant reproduction, e.g. artificial seeds
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
- A01C1/06—Coating or dressing seed
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S47/00—Plant husbandry
- Y10S47/09—Physical and chemical treatment of seeds for planting
Definitions
- the present invention relates generally to artificial seeds and, more particularly, to a combination end seal and cotyledon restraint for artificial seeds.
- Asexual propagation for plants has been shown for some species to yield large numbers of genetically identical embryos, each having the capacity to develop into a normal plant. Such embryos must usually be further cultured under laboratory conditions until they reach an autotrophic “seedling” state characterized by an ability to produce its own food via photosynthesis, resist desiccation, produce roots able to penetrate soil, and fend off soil microorganisms.
- Some researches have experimented with the production of artificial seeds, known as manufactured seeds, in which individual plant somatic or zygotic embryos are encapsulated in a seed coat. Examples of such manufactured seeds are disclosed in U.S. Pat. No. 5,701,699, issued to Carlson et al., the disclosure of which is hereby expressly incorporated by reference.
- Typical manufactured seeds include a seed shell, synthetic gametophyte, and a plant embryo.
- a manufactured seed that does not include the plant embryo is known in the art as a “seed blank.”
- the seed blank typically is a cylindrical capsule having a closed end and an open end.
- Synthetic gametophyte is placed within the seed shell to substantially fill the interior of the seed shell.
- a longitudinally extending hard porous insert commonly known as a cotyledon restraint, may be centrally located within the synthetic gametophyte.
- the cotyledon restraint includes a centrally located cavity extending partially through its length. The cavity is sized to receive a plant embryo therein.
- the well-known plant embryo includes a radicle end and a cotyledon end.
- the plant embryo is deposited within the cavity of the cotyledon restraint, cotyledon end first.
- the embryo is sealed within the seed blank by at least one end seal. There is a weakened spot in the end seal to allow the radical end of the embryo to penetrate the end seal.
- currently available manufactured seeds include a separate cotyledon restraint and an entirely separate end seal to seal the synthetic gametophyte within the seed shell.
- a combination end seal and cotyledon restraint for an artificial seed is provided.
- the combination end seal and cotyledon restraint includes a cap portion sized to substantially seal one end of an artificial seed and a cotyledon restraint unitarily formed with the cap portion.
- the cap portion includes sidewalls sized for sealing engagement with a seed coat. In certain other embodiments, the sidewalls of the cap portion are tapered.
- the combination end seal and cotyledon restraint includes sidewalls having an angular configuration for sealing engagement with the seed coat.
- the sidewalls of the cap portion are sized for sealing engagement with an outside perimeter of the seed coat sidewalls.
- the combination end seal and cotyledon restraint formed in accordance with the various embodiments of the present invention has advantages over a non-unitary end seal and cotyledon restraint.
- a manufactured seed assembled with a combination end seal and cotyledon restraint of the present invention is simpler to manufacture.
- the end seal and cotyledon restraint are unitary, the location of the cotyledon restraint opening within a manufactured seed can be controlled with greater certainty than those currently available.
- a combination end seal and cotyledon restraint formed in accordance with various embodiments of the present invention is more reliable and is capable of mass production at a relatively low cost.
- FIG. 1 is a cross-sectional side view of a manufactured seed blank having a combination end seal and cotyledon restraint formed in accordance with one embodiment of the present invention
- FIG. 2 is a cross-sectional side view of a manufactured seed blank having a combination end seal and cotyledon restraint formed in accordance with another embodiment of the present invention, showing sidewalls of the combination end seal and cotyledon restraint received within an outside diameter of the seed blank;
- FIG. 3 is a cross-sectional side view of a manufactured seed blank having a combination end seal and cotyledon restraint formed in accordance with yet another embodiment of the present invention, showing sidewalls of the combination end seal and cotyledon restraint received around the outside diameter of the seed blank;
- FIG. 4 is a cross-sectional side view of a manufactured seed blank having a combination end seal and cotyledon restraint formed in accordance with another embodiment of the present invention, showing sidewalls of the combination end seal and cotyledon restraint sheltering a nutritive media therein;
- FIG. 5 is a cross-sectional side view of a manufactured seed blank having a combination end seal and cotyledon restraint formed in accordance with another embodiment of the present invention, showing the sidewalls of the combination end seal and cotyledon restraint sheltering a nutritive media therein and the interior of the combination end seal and cotyledon restraint is contoured;
- FIG. 6 is an isometric view of a manufactured seed blank having a combination end seal and cotyledon restraint formed in accordance with yet another embodiment of the present invention, showing a hollow seed shell and the combination end seal and cotyledon restraint;
- FIG. 7 is a cross-sectional side view of the manufactured seed blank of FIG. 6 , showing the combination end seal and cotyledon restraint received within the seed shell and a nutritive media disposed therein.
- FIG. 1 illustrates a combination end seal and cotyledon restraint 20 (hereinafter “cylcap 20 ”) constructed in accordance with one embodiment of the present invention.
- cylcap 20 is suitably used for a seed blank 22 , such as one as disclosed in U.S. Pat. No. 5,701,699, issued to Carlson et al., the disclosure of which is hereby expressly incorporated by reference.
- the seed blank 22 includes a seed shell 24 , a nutritive media 26 , such as a gametophyte, and a dead end seal 28 .
- the seed shell 24 is suitably formed from a section of tubular material.
- the seed shell 24 is a sectioned straw of fibrous material, such as paper.
- the sections of straw may be pre-treated in a suitable coating material, such as wax.
- the seed shell 24 is formed from a section of biodegradable, plastic material. It should be apparent that although sectioning tubes is preferred, other embodiments, such as obtaining tubes of appropriate size for use as manufactured seeds, are also within the scope of the present invention.
- the cylcap 20 is suitably manufactured from a porous material having a hardness strong enough to resist puncture or fracture by a germinating embryo, such as a ceramic material, and includes an end seal portion 30 and a cotyledon restraint portion 32 .
- the cotyledon restraint portion 32 is suitably integrally or unitarily formed with the end seal portion 30 .
- the cylcap 20 also includes a longitudinally extending cavity 34 extending through the end seal portion 30 and partially through one end of cotyledon restraint portion 32 .
- the open end of the cavity 34 is known as a cotyledon restraint opening 36 .
- the cavity 34 is sized to receive a plant embryo (not shown) therein.
- the cylcap 20 is suitably manufactured from a porous material, it may be desirable to coat the cylcap 20 with a barrier material to reduce the rate of water loss and restrict or reduce microbial entry.
- barrier material include wax, polyurethane, glaze, nail polish, and a coating sold by Airproducts Airflex 4514.
- the end seal portion 30 is suitably circular when viewed in a top planar view and includes sidewalls 38 . Although circular is the preferred embodiment of the end seal portion 30 , other embodiments and shapes, such as polygonal, square, triangular, oval and other shapes, are also within the scope of the present invention.
- the sidewalls 38 are defined by the thickness of the end seal portion 30 and has a diameter substantially equal to the inside diameter of the seed shell 24 .
- the cylcap 24 is bonded to the seed shell 24 by heat.
- the cylcap 20 may be heated to a pre-determined temperature, such that when the seed shell 24 and the cylcap 20 are co-joined, heat transferred between the cylcap 20 and the seed shell 24 causes either the seed shell 24 , the cylcap 20 , or both to melt, thereby bonding the two together.
- Other methods of bonding the cylcap 20 to the seed shell 24 such as a wax bond or a hot glue melt, are also within the scope of the present invention.
- the sidewalls 38 may include a tapered portion 40 .
- the tapered portion 40 in the illustrated embodiment of FIG. 1 , may be a chamfer of one end of the end seal portion 30 .
- the tapered portion 40 assists in assembling the cylcap 20 to the seed coat 24 during manufacturing.
- a tapered portion 40 is preferred, other embodiments, such as a cylcap that does not include a tapered portion, are also within the scope of the present invention.
- a cylcap 120 formed in accordance with another embodiment of the present invention will now be described in greater detail.
- the cylcap 120 of the present embodiment is identical in all aspects to the previously described embodiment, with the exception that the sidewalls 138 are an annular member formed at the bottom of the cylcap 120 . It should be apparent to one of ordinary skill that terminology used throughout this detailed description such as top, bottom, side, upper, lower, etc., should be construed as descriptive, and not limiting.
- the cotyledon restraint portion is defined by the cavity 34 .
- the sidewalls 138 are suitably an annular, protruded area formed in the lower surface of the cylcap 120 .
- the sidewalls extend downwardly and are configured, in one embodiment, to sealingly fit into a correspondingly shaped lip 50 formed in the upper surface of the seed shell 24 .
- the sidewalls 138 have a diameter that is substantially equal to the inside diameter of the seed shell 24 .
- the sidewalls 138 of the cylcap 120 are sized and configured for sealing engagement within the outside parameter of the seed shell 224 .
- the sidewalls 138 are configured for sealing engagement with a correspondingly shaped lip 50 of the seed shell 224 , other embodiments, such as sidewalls that sealing engage completely and/or substantially completely within the inside perimeter of the seed shell (i.e., no correspondingly shaped lip on the upper surface of the seed shell) are also within the scope of the present invention.
- a cylcap 220 formed in accordance with yet another embodiment to the present invention will be now be described in greater detail.
- the cylcap 220 of the present embodiment is identical in materials and operation as the previous cylcaps described above, with the exception that the cylcap 220 includes sidewalls 238 formed as an annular extension of the cylcap 220 .
- the sidewalls 238 are suitably formed as a cavity or depressed area in the lower surface of the cylcap 220 .
- the sidewalls 238 are suitably configured and sized to be sealingly coupled to a correspondingly shaped ridge 250 formed in the upper surface of the seed shell 224 . As coupled to the seed shell 224 , the sidewalls 238 have a diameter substantially equal to the outside diameter of the seed shell 224 . Thus, the sidewalls 238 of the cylcap 220 are sized and configured for sealing engagement with the outside parameter of the seed shell 224 .
- the sidewalls 238 are configured for sealing engagement with a correspondingly shaped ridge 250
- other embodiments such as sidewalls that sealing engage completely and/or substantially completely around the outside perimeter of the seed shell (i.e., no correspondingly shaped ridge on the upper surface of the seed shell) are also within the scope of the present invention.
- the cylcap 320 is substantially identical in materials and operation to the cylcaps previously described, with the exception that the cylcap 320 includes sidewalls 338 that reduces the need for a seed shell. Specifically, the sidewalls 338 form a housing having an interior sized to shelter nutritive media 26 . In one embodiment, the cylcap 320 includes a cavity of predetermined volume extending partially through the cylcap 320 .
- the nutritive media 26 may either be poured into the cavity defined by the sidewalls 338 or may be frozen in a shape suitable for insertion into the cavity formed by the sidewalls 338 .
- the cylcap of the present embodiment includes sidewalls that form a housing having an interior sized and configured to shelter nutritive media 26 .
- the sidewalls 338 form a housing for nutritive media 26 , thereby minimizing or eliminating the seed shell. Anywhere the sidewalls 338 are used to replace the seed shell, the exterior of the sidewalls 338 should be sealed to substantially prevent water loss and microbial entry. It should be apparent, however, that the embodiment is not intended to be so limited. As a non-limiting example, the sidewalls 338 may extend partially down the length of the nutritive media, such as one quarter, one half, three quarters, etc., of the length of the nutritive media, and couples with a correspondingly sized seed shell in a manner as set forth above. Thus, other embodiments are within the scope of the present invention.
- the cylcap 420 of FIG. 5 is identical in materials and operation to the embodiment previously described above with respect to the cylcap 320 , with the exception that the interior of the cylcap 420 is contoured. Specifically, the interior includes an angled portion 440 .
- the angled portion 440 defines a distance, indicated by the arrow 442 , between the cavity 34 and the nutritive media 26 that is less than the distance, indicated by the arrow 444 , without the angled portion 440 .
- the angled portion 440 defines a shorter distance 442 for the transport of nutritive media 26 through the walls of the cylcap 420 when compared to cylcaps formed without the angled portion 440 .
- the distance between the cavity 34 and the nutritive media 26 are illustrative only and are not intended to limit the embodiments shown and described throughout the specification. It should be apparent to one of ordinary skill that the porosity of the material used to manufacture the cylcaps shown and described throughout the present disclosure determines the acceptable distance between the cavity 34 and the nutritive media 26 . As a non-limiting example, if the porosity of the cylcap is high, then the distance between the cavity 34 and the nutritive media 26 would be greater and, conversely, if the porosity is low, then the distance is smaller. Thus, such embodiments are also within the scope of the present invention.
- the cylcap 520 is identical in materials and operation to the embodiments previously described above with the exception that the cylcap 520 is sized to be slidably received within a correspondingly shaped seed shell 524 .
- the cylcap 520 is suitably formed as a bell-shaped component that is substantially hollow.
- the cylcap 520 includes a substantially cylindrically shaped cotyledon restraint 526 centrally located within the hollow interior of the cylcap 520 , and also includes an end seal portion 522 .
- the end seal portion 522 is suitably dome-shaped and is integrally formed with the cylcap 520 .
- the end seal portion 522 is a separate component that is sealingly attached to cylcap 520 in a manner well known in the art, such as by fusing and gluing.
- the cotyledon restraint 526 is disposed beneath the cotyledon restraint opening 536 .
- the cotyledon restraint 526 is integrally formed with the cylcap 520 or, in alternate embodiments, is manufactured as a separate component that is securely received within the cylcap 520 .
- the seed shell 524 includes a cap 528 formed at one end.
- the cap 528 is suitably formed by crushing or collapsing the sidewalls of one end of the seed shell 24 in any manner known in the art.
- the cap 528 includes an opening 530 positioned adjacent the cotyledon restraint opening 536 when the cylcap 520 is received within the seed shell 524 .
- nutritive media 26 is suitably disposed within the seed shell 24 , substantially filling the interior of both the seed shell 524 and the cylcap 520 .
- a well known dead end seal 538 may be applied to the opened end of the seed shell 524 , thereby sealing the nutritive media 26 within the seed shell 524 .
Abstract
Description
Claims (26)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/982,952 US7131234B2 (en) | 2003-11-25 | 2004-11-04 | Combination end seal and restraint |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US52543203P | 2003-11-25 | 2003-11-25 | |
US10/982,952 US7131234B2 (en) | 2003-11-25 | 2004-11-04 | Combination end seal and restraint |
Publications (2)
Publication Number | Publication Date |
---|---|
US20050114919A1 US20050114919A1 (en) | 2005-05-26 |
US7131234B2 true US7131234B2 (en) | 2006-11-07 |
Family
ID=33517619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/982,952 Active 2025-07-01 US7131234B2 (en) | 2003-11-25 | 2004-11-04 | Combination end seal and restraint |
Country Status (7)
Country | Link |
---|---|
US (1) | US7131234B2 (en) |
EP (1) | EP1535503B1 (en) |
AU (1) | AU2004229099B2 (en) |
BR (1) | BRPI0405159A (en) |
CA (1) | CA2486289C (en) |
DE (1) | DE602004003204D1 (en) |
SE (1) | SE0402847D0 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060032121A1 (en) * | 2004-06-30 | 2006-02-16 | Edwin Hirahara | Method and system for producing manufactured seeds |
US20090087909A1 (en) * | 2007-09-28 | 2009-04-02 | Weyerhaeuser Company | Use of Trehalose in Conifer Somatic Embryogenesis to Increase Germination Vigor |
US20090320360A1 (en) * | 2008-06-26 | 2009-12-31 | Weyerhaeuser Nr Company | Manufactured seed having an improved end seal |
US20110162270A1 (en) * | 2008-10-31 | 2011-07-07 | David Larsen | Seed and plant growth medium module |
WO2013003285A1 (en) * | 2011-06-29 | 2013-01-03 | Weyerhaeuser Nr Company | Shoot restraint for use with manufactured seeds |
US8863437B2 (en) | 2011-06-29 | 2014-10-21 | Weyerhaeuser Nr Company | Shoot restraint for use with manufactured seeds |
US8893429B2 (en) | 2011-06-29 | 2014-11-25 | Weyerhaeuser Nr Company | Manufactured seed having a treated end seal assembly |
US10524427B2 (en) | 2004-02-13 | 2020-01-07 | Klondike Agricultural Products, LLC | Agricultural systems and methods |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US7555865B2 (en) * | 2003-11-25 | 2009-07-07 | Weyerhaeuser Nr Company | Method and system of manufacturing artificial seed coats |
GB0715281D0 (en) * | 2007-08-07 | 2007-09-12 | Nokia Siemens Networks Oy | Reduced transmission time interval |
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Also Published As
Publication number | Publication date |
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EP1535503A1 (en) | 2005-06-01 |
AU2004229099B2 (en) | 2006-12-14 |
EP1535503B1 (en) | 2006-11-15 |
SE0402847D0 (en) | 2004-11-23 |
US20050114919A1 (en) | 2005-05-26 |
BRPI0405159A (en) | 2005-12-20 |
AU2004229099A1 (en) | 2005-06-09 |
DE602004003204D1 (en) | 2006-12-28 |
CA2486289A1 (en) | 2005-05-25 |
CA2486289C (en) | 2008-01-08 |
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